Vacuum-cleaner.



F. C. MASON.

VACUUM CLEANER.

APPLICATION FILED mac. 6. 1915.

m wcm ATTORNEYS N entrain, snares PATENT @FFTGE.

FRANCIS c. MASON, or eRANnRArIns, MICHIGAN, ASSIGNOR '10 BISSELL CARPET swnnrnn COMPANY, or enema RAPIDS, MICHIGAN, A CORPORATION or MICHI- GAN.

. I vacuum-CLEANER.

' p c a... Patent. Patented A r. m, 1191?.

I Application filed llccember'fi, 1915. Serial No. 65,345.

To all whom. it may n I};

a citizenof the United States'fresiding'jajt the city of Grand Rapids,-county of Kent, and State of Michigan, have invented cer tain new and useful Improvements in Vacuum-Cleaners, of which the following is a specification.

This invention relates to .improvements in vacuum cleaners.

The main object of my invention is to provide a centering or locating device on the nozzle of a vacuum cleaner which will insure the proper positioning or centering of the nozzle when the same is securely locked to the casing. Further objects relating to details and economies ofconstruction and operation will definitely appear from the detailed description to follow.-

ll accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims.

A structure constituting a preferred embodiment of my invention is illustrated in the accompanying drawing forming a part of this specification, in which:

Figure T is a sid elevation of the nozzle end of a vacuum cleaner.

Fig. H is an enlarged detail horizontal sectional. view through the mechanism for locking the nozzle to the casing, taken on a line corresponding to the section line 22 of Fig-1.

Fig. HT is a detail vertical sectional view showing the nozzle locked to the casing, the locking handle being removed, taken on a line corresponding to the section line 3-3 of Fig. ll.

Fig. TV is a perspective view of the front end of a vacuum cleaner with the nozzle and dust bag partially drawn out from the same.

taken looking in the direction of'the little arrows at the ends of the section lines.

Referring to the drawing, 1 1s a vacuum cleaner easing into which fits the nozzle v block 2, said block also carrying the dust Be it known that I,.FnANCIs'-' CI MASON,

bag8. At the corners of the nozzle block are fastened the corner plates 4, said plates extending beyond said block and abutting against'the sides of casing 1. v

. On plates 4 are mounted the nozzle hooks 5 and the locking handle 6. Each of the hooks 5 is mounted on an eccentric 7, said eccentric being fastened to an integral part of said locking handle 6. The hooks 5 engage pins 8 which serve to securely clamp the nozzle block to the casing. The operation of this part of the machine is clearly described in the pending application of John W. Shanahan and Francis C. Mason, Ser. No. 857,134.

A ll-shaped notch 9 is made in the rear end of the side portion of the corner pieces 4. .The converging edges of the notch ters minates in a slot 10.

On the side of the casing 1 is a stud ll adapted to engage notch 9 and slot 10. lt is therefore evident that when the dust bag and nozzle are to be replaced in the machine the corner pieces 4 will slide on the sides of the casing and the notched portion coacting with the stud 11, will bring the nozzle to a true centering when slot 10 engages stud 11. After the nozzle has been so positioned the hooks 5 may be engaged as in Fig. T, the pins 8 and the whole structure locked by handle '6.

The object of these corner plates is, therefore, to properly position and guide the nozzle into place, as the operator of the machine often has a tendency to allow the nozzle to sag when replacing it, thus making a leaky connection at the joint of the nozzle block and easing.

A. modification of the corner plates is shown in Fig. V'Lwherein the lower half of the notched portion is dispensed with. Thus the nozzle will be guided into place when the projection 12 rides on stud ll and the final centering taking place when shoultier-13 engages said stud. l't is thus clear this device may be modified as l have shown.

Having thus described my invention, what T claim as new and desire to secure by Letters Patent is:

1. ln a suction cleaner or sweeper,

' combination of a casing, a. suction nozzle on llld the same, a V guide notch cut in said rearwardly extending portions and termina-tlng in a slot, a centering pin on the side walls of the casing upon which either edge of the said notch may ride bringing the nozzle to a true centered position with respect to the casing when the said pin engages the said slot, and a means for locking the nozzle to the casing as described.

2. In a suction cleaner or sweeper, the

combination of a casing, a suction nozzle on maaeae able means for locking the nozzle to the casing as described.

3. In a suction cleaner or sweeper, the combinationof a casing, a suction nozzle on the front side thereof, suitable guide and centering plates on said nozzle, suitable centering pins on the said casing adapted to engage the said centering plates and bring the nozzle to a true centered position with respect to the casingfarid a means for locking the nozzle to the casing.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

FRANCIS C. MASON. [1,. s.] I/Vitnesse's ANGELA J. LAFFERTY, FRED LINDNER. 

